Sanitary trap.



PATENTED NOV. 3, 1903.

J. W. MQAULIFFE.

SANITARY TRAP. APPLICATION FILED MAB. 9, 1903.

H0 MODEL.

WITNESSES INVzNZ-UH:

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UNITED STATES- Patented November 3, 190%.

PATENT OFFICE.

SANITARY TRAP.

SPECIFICATION forming part of Letters Patent No. 743,094, dated November 3, 1903;

Application filed March 9, 1903.

To all whom it may concern:

Be it known that I, J OHN W. MCAULIFFE, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Improvement in Sanitary Traps, of which the following is a specification.

This invention has reference to an improvement in sanitary traps used to form a gas seal, and more particularly to an improvement in the inlet-duct in the trap.

In sanitary traps it has been found desirable to give a rotary or spiral motion to the fluid as it passes through the trap. This rotary or spiral motion scours the trap and assists in breaking the siphon, leaving a body of fluid sufficiently large to form a gas seal in the trap.

The objects of my invention are to simplify and construct a sanitary trap that will give a more perfect rotary or spiral movement to the fluid, more quickly break the siphon at the end of the flow, and leave a larger body of fluid in the trap to form a gas seal than has heretofore been done; and my invention consists in the peculiar and novel construction of the trap and the lower or outlet end of the inlet-duct in the trap for this purpose, as will be more fully described hereinafter, and pointed out in the claims.

Figure 1 is a vertical sectional view of my improved sanitary trap. Fig. 2 is a transverse sectional view, taken on line X X of The deflector a. is constructed to form the" closed lower end a, the spirally-bent side wall of, and the outlet-opening a. Near the top of the trap and extending laterally from Serial No. 146,862. (No model.)

it is the outlet-duct of, formed in one piece with the body a, and extending across the body a and the lower edge of the outlet-duct of is the baffle-plate a, for retarding or hold- ,ing a predetermined amount of fluid in the trap. The deflector a is preferably secured to the inlet-duct a near the bottom of the motion. The peculiar and novel form of the deflector on the end of the inlet-duct gives to the fluid a rotary or spiral motion in the trap around the inlet-duct, scouring the trap. The fluid now passes upward and over the baffleplate a and out of the trap through the outlet-duct a The rotary or spiral motion given to the fluid in my improved trap assists in quickly breaking the siphon at the end of the flow, and the baffle-plate a retards or holds a predetermined amount of the fluid to form a larger and more perfect gas seal than has heretofore been done.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a sanitary trap, a one part cylindrical body having a detachable bottom or cover,a centrally-located inlet-duct extending downward through the top and into the body of the trap, an outlet-duct extending laterally from'the trap near the top, an upwardlyextending shelf or baffle-plate near the outletduct, and a deflector on the inner end of the inlet'duct having a closed end, a spirally-bent side wall, and an outlet-opening to give a 1'0- tary or spiral motion to the fluid and to retard or hold a predetermined amount of the fluid in the trap, as described.

2. In a sanitary trap, the combination with the cylindrical body at having the detachable bottom or cover a. and the inlet-duct a the deflector a in screw-thread engagement with the inner end of the inlet-duct and having the closed lower end a, the spirally-bent side wall a and the outlet-opening a the outletduct a extending laterally from the body 5 near the top, and the upwardly-extending shelf or baffle-plate a near the outlet-duct, all for the purpose as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN W. MOAULIFFE.

Witnesses:

ADA E. HAGERTY, J 0s. A. MILLER, Jr. 

